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3 years ago

What r the blanks 8,570 85.7 8.57

Mathematics

1 answer:

mina [271]3 years ago

3 0

I don't get the question but i'll try...

Well, your 1st blank is going to be 187, and for the second blank...8.850 I think

Your welcome and correct me if i'm wrong.

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Find the equation, (f(x) = a(x-h)2+ k), for a parabola containing point (-1,0) and having (-3, 4) as a vertex. What is the stand

kirill115 [55]

$(h;\ k)\ -\ \text{the coordinates of the vertex}$

$\text{therefore we have:}\ f(x)=a(x+3)^2+4$

$\text{a parabola that passes through the point (-1; 0)}$

$\text{substitute the coordinates of the poin (-1; 0) to the equation}$

$(-1;\ 0)\to x=-1;\ y=0\\\\0=a(-1+3)^2+4\\\\0=a(2)^2+4\\\\0=4a+4\ \ \ |-4\\\\4a=-4\ \ \ |:4\\\\a=-1$

$f(x)=-(x+3)^2+4=-(x^2+2\cdot x\cdot3+3^2)+4=-(x^2+6x+9)+4\\\\=-x^2-6x-9+4=-x^2-6x-5$

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3 years ago

Would anyone care to explain how to get through this problem in the photo? I'm at a complete dead end! Any help would be appreci

shutvik [7]

Step-by-step explanation:

The slope of the equation tangent to y = f(x) at x = 4 is equal to f'(4). Therefore,

$m = f'(4) = \dfrac{1}{(4)^2 - 9} = \dfrac{1}{7}$

We also know that the line passes through the tangent point at (4, -1) so we can write the slope-intercept form of the equation as

$y = mx + b \Rightarrow -1 = \dfrac{1}{7}(4) + b$ or

$b = -\dfrac{11}{7}$

so our equation is

$y = \dfrac{1}{7}x -\dfrac{11}{7}$

or in standard form,

$x - 7y = 11$

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3 years ago

How to divided 4 and 2/4

Lelu [443]

Answer:

Step-by-step explanation:

turn 2/4 into fraction by dividing 2 by 4 equals to 0.5 then divide 4 by 0.5 equals <u><em>8</em></u>

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3 years ago

1) A student earned a grade of 80% on a math test that had

PSYCHO15rus [73]

Answer:

1.) the student got 16 questions correct

2.) 81% showed up

3.)75%

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3 years ago

Read 2 more answers

Write perimeter and area of circle

alexira [117]

Answer:

The perimeter of a circle is π × d. Here's is the diameter of the circle. Hence, the perimeter of a circle is half of that of the circle that is ½ π × d.

The area of a circle is pi times the radius squared (A = π r²). Learn how to use this formula to find the area of a circle when given the diameter.

Step-by-step explanation:

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4 years ago